Section 1-12 - Compatibility (a) Storage tank systems shall be made of, or lined with, materials that are compatible with the regulated substance stored.
(b) Owners and/or operators shall notify the department at least 30 days prior to changing to a regulated substance containing greater than 10 percent ethanol, greater than 20 percent biodiesel, or any other STP-regulated substance identified by the department. In addition, owners and/or operators shall meet the following: - (i) Prior to storing these substances in an existing or new tank system, owners and/or operators shall demonstrate that storage tank system components are compatible with the substance to be stored. Compatibility demonstration shall be made by one of the following:
- (A) Certification or listing of tank system equipment or components by a nationally recognized, independent testing laboratory for use with the regulated substance stored; or
- (B) Equipment or component manufacturer certification that the tank system components are compatible for use with the substance to be stored. This certification shall be in writing, indicating an affirmative statement of compatibility, including the biofuel blend range (if applicable), for which the component is compatible.
- (ii) Compatibility Checklist. The storage tank owner and/or operator shall complete the compatibility checklist developed by the department. The completed checklist and compatibility demonstration for each component of the tank system shall be submitted to the department. The department will issue written authorization to store the substance after review and acceptance of the submittal.
- (iii) Owners and/or operators shall maintain component compatibility documentation for as long as the tank system is used to store the regulated substance.
- (iv) API Recommended Practice 1626, as referenced in Section 2, may be used to comply with this Section.
020-1 Wyo. Code R. § 1-12